Window regulator



Jan. 1, 1929.

S. -W. NICHOLSON WINDOW REGULATOR 2 Sheets-Sheet 1 r Filed Sept. 25,1924 5 mm n N m E0 m Wk T [m A M MI I. m w My Y .5 vention is that itmay. be

I stantial alignment with its points of Patented Jan. 1.1929.

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Application fled September 25,

nection to the window-and to the mem er 20. arm and also for actuatingthe lifter arna. Further objects are the provision of a window lifter ofthe screw drive ty e having an improved nut for connecting t e screw tothe lifter having an improved universal coupling for rotating the screw.

With these as well as other objects in view, the invention resides inthe novel features of construction an combinations and arrangements ofparts as more fully hereinafter set forth.

In the drawings: Figure 1 is an inside elevation, partly broken away, ofa vehicle door havin aplied thereto a window regulator em mg myinvention;

igure 2 is a vertical section. therethrough; a

Figure 3 is a 111m view of the lifter arm;

Figures 4 am. 5 are inside elevations of the sections of the nut forconnecting the screw to the lifter arm;

Figure 6 is a sectional elevation showing the universal coupling forconnecting the screw to one .of the drive shafts and also showing themanner of securing one of the drive gears upon the latter shaft;

Figure 7 is a plan view of a blank'from which the mounting plate isformed.

In the present instance I have shown my window regulator as applied tothe door 1 of a vehicle which has in its upper portion the o ning 2 andcharm r 3. 4 is in its lower portion the the window or closure which isvertically slidable in the side uprights of the door from a positionclosing the opening 2 into the chamber 3.

' 5 is the mounting plate for the mechanism of the wind ow regulator,this mounting plate being a gusset extending across a cor- (1 channel 11lifter arm.

being connected to the latter extending transversely of the rivets whichconnect the gear applied through the screws nae. Serial 1'... 789,887.

ner between one of the side uprights of the door and the lock board 6and secured at its ends to this side upright and the lock board suitablemeans sucl l as the screws 7. is the lifter arm pivotally mounted at 9upon the lower ortion of the mountin plate 5 and provi ed at its outerorfree end with the roller 10 which is engageable in the secured to anddepending from the lower edge of the window. 12 is the screw for swinginthe lifter arm, the threaded portion of this screw enga ing the nut 13which is pivotally connecte to-the 14 is the gear box housing the gears15 and 16, the shaft of the former handle 17 upon the inner side of thedoor and the shaft of the shaft and being connected to the upper end ofthe screw 12 by the universal coupling 18. This gear box is formed intwo sections having their meetin edges in the plane of the axis of thesha t carrying the gear 16 and the sections are secured together by boxto the mounting plate. 19 is the window counterbalancing sprin havingits lower end connectedto the lii ter arm 8 and its upper endadjustablconnected to 5 near tie upper end s' cificall shown the mounting plateis provided wit 1 the elongated o enings 20 which are alternativelyengage-a le by the hook 21, which in turn is engageablc by the hook 22secured to the upper end of the counter balancing spring.

23 is abumper formed of suitable material such as rubber and locatedupon the bottom sill of the door to engage the outer or'iree end of thelifter arm 8 when the latter is in its lowermost position. This bumperis so ositioned that the channel 11 upon the win ow clears the bumperand as a consequence the weight of the window remains upon the roller 10of the arm.

As shown particularly in Figure 3, the lifter arm 8 is laterally bentnear its pivotal end so that its pivotal portion 24, which is en ageablewith the pivot 9, is in substantia alignment with the centers of theroller 10 and the nut 13 whereby when force is 12 to raise or of thelifter ath parallel le.

the mounting plate of the latter. As

lower the lifter arm, tendency arm to turn laterally or in a to the axisof its pivot is negligi first fit by th The nut 13 is formed of thesections 25 and 26 each having a pivot portion 27. The pivot portion ofthe section 25 is journeled in the lifter arm itself while the pivotportion of the section 26 is journaled in the bracket 28, the foot flsecured to the lifter arm such as rivets. 26, as shown particularlyinFigures 5 have he same type all of which facilitates the assembly. Tomaintain t e sections in proper relation to t 1e screw 12 and at thesame time to take care of wear of the screw threads there is t 10 springwasher 29 ocated between the ket 28 and the adjacent section 26 tend ingto section.

The hook end of the lignment with .lifter arm and t to centers of thenut and roller connected to the lifter arm whereby the force exerted ecounterbalancing spring has no appreciable tendency to laterally turnthe lifter arm,

As shown particularly in FigureG, the universal coupling 18 is formed ofa section of rod, the end portions 30 and 31 of which are flattened atright angles to each other and respectively engage between the,bifurcations 32 and 33 of the shaft 34 and screw respectively. These flmay be more readereupon and WlllCll mg plate to a force this sectiontoward the other t y ment.

y forcing the gear upon. these threads at its ends securing portions 39and 40 for receiving the'screws which secure the mountside upright andthe lock board of the door respectively, a portion 41 thereto, an tion42 in which the elongated are formed and also a portion opposite end forreceiving the the lifter arm, this mounting plate being furthermoreshaped so that it may -'be formed from a blank 44, which is in the formof a flat metallic strip, with the minimum waste of material. As shownthis b ank is of a width to form two mounting openings 20 43 near thepivot 9 for ing plate being parallel to the severed edge ard securingportion 40 and e severed transversely extending edge 47 at the inner endof th e severed transversely extending edge 48 of the laterallyenlargedportlon 42. he intermediate severed edges 4.9 of the mountingplate extend parallel to each other. s a consequence, zig-zag severingof the blank longitudinally thereof, forms the, blank into two mountingplates with the minimum waste of material.

Vhat I claim as my invention is:

n a window regulaton the combination with a support, of a li or arm saidhat its point of pivotal ow, and its point of connection to'itsactuatlng meansare 1H substantial alignofallft actuatmgmember, and itspoint of substantial alignment.

testimony whereof I aflix my signature.

STANLEY W. NICHOLSON.

